x3d import in python
I'm not entirely sure that it does the exact right thing but...

I edited the lines 2044 and 2045 to following lines in the import_x3d.py script in order to fix the error message I got. Basic idea is to just prolong the uv vector to 4 components and then copy the first to back to the target.

tmp = texmtx * luv.uv.to_4d()
luv.uv = tmp.xy


The scenes seem to be loaded, but I have not checked the UV coordinates in detail since for now I don't care that much about them. I may later.